Function containsAnyPlaceholder

src/utils/bash/ast.ts:94–96

* All placeholder strings. Used for defense-in-depth: if a varScope value * contains ANY placeholder (exact or embedded), the value is NOT a pure * literal and cannot be trusted as a bare argument. Covers composites like * `VAR="prefix$(cmd)"` → `"prefix__CMDSUB_OUTPUT__"` — the substring check

(value: string)

 * `VAR=__TRACKED_VAR__ && rm $VAR` — treated as non-literal (conservative).
 */
function containsAnyPlaceholder(value: string): boolean {
  return value.includes(CMDSUB_PLACEHOLDER) || value.includes(VAR_PLACEHOLDER)
}

/**
 * Unquoted $VAR in bash undergoes word-splitting (on $IFS: space/tab/NL)